Incrementally adjustable vent
AssigneeLeonard W. Suroff
InventorStanley Kolt
Life of this patent
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Abstract
An energy saving incrementally adjustable vent, for permitting the passage of air from one defined space to another which can be mounted on a vertical or horizontal surface includes a frame for mounting over an opening communicating therebetween. The frame has a central passageway disposed therethrough and a flap movably mounted to the frame, so as to be movable from a closed position substantially blocking the passageway, to an open position, permitting the flow of air therethrough. An adjustment device has a detent apparatus affixed to the frame. The adjustment device cooperates with the flap to provide a means for selectively adjusting the amount of air flow therethrough.
Claims11
An incrementally adjustable vent for permitting the passage of air from one defined space to another space comprising:
- (a) frame means for mounting over an opening communicating between said spaces having a passageway disposed therethrough, said frame means including;
- (i) movable adjustment means for adusting the amount of opening of said passageway, and
- (ii) detent means for incrementally determining the amount of said opening;
- and
- (b) flap means movably mounted to said frame, said flap means being movable from a closed position substantially blocking said passageway to an open position permitting the free flow of air therethrough, including;
- (i) a pivotal axis disposed proximate one edge of said flap means, and
- (ii) means positioned proximate said pivotal axis for cooperating with said adjustment means to move said flap means in a direction to open said passageway thereby increasing the amount of air flow therethrough.
Dependencies are inferred from the claim text.